In a thread at WebmasterWorld created by an official Yahoo! representative named Yahoo_Mike, he says:

Iím not certain if folks here have seen Forresterís recent Consumer Technographics Survey, but it cites some interesting stats on Yahoo! vs. Google search. According to the survey, Yahoo! Search and Google are at a draw Ė personalization, presentation and quality of service are considered the big differentiators now, with the nod ultimately going to Yahoo! Search. PC World cites the surveyís findings. While this is great validation, I think we also recognize the fact that we still have a lot to accomplish and weíre working really hard to make improvements to our services and more important, address the issues and concerns identified on this forum and others. Much more to come in the weeks and months ahead.

Surprised? So are most the WebmasterWorld members. In fact, the report is not yet available as Yahoo_Mike states, "at the moment the Forrester research is for Forrester clients, but hopefully they'll release something on this publicly soon."